3 papers
astro-ph.CO2026
Redshift-Dependent Intrinsic Dispersion in the Quasar UV/X-ray Luminosity Relation
Jiaze Gao, Jianping Hu, Yun Chen +2
Accurate modeling of the intrinsic dispersion in the quasar UV/X-ray luminosity relation is essential for reliable cosmological inference. We investigate its redshift dependence us…
astro-ph.CO2025
Constraints on transition redshift utilizing the latest H(z) measurements and comments on the Hubble tension
Jianping Hu, Xuandong Jia, DaoHong Gao +3
The motivation of this paper is to obtain reliable constraints of transition redshift () and, in combination with the evolution of the Hubble constant () that could…
astro-ph.CO2024
Detection of gamma-ray burst Amati relation based on Hubble data set and Pantheon+ samples
Yufen Han, Jiaze Gao, Gang Liu +1
Using gamma-ray bursts as standard candles for cosmological parameter constraints rely on their empirical luminosity relations and low-redshift calibration. In this paper, we exami…